Brown Gingrich

The small, rounded tip of fecal matter that can emerge from a receiving partner's anus during hard and rapid vaginal intercourse in the "doggy style" position that protrudes outwards just far enough to often leave a small, offensive-smelling, muddy-brown stain on the pubic region of the penetrating partner. 

After sleeping with the hooker, Newt noticed he still had a smelly, muddy stain on his gray pubic hair from her brown Gingrich.